package com.zfj.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.zfj.common.constant.ProductConstant;
import com.zfj.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.zfj.gulimall.product.dao.AttrGroupDao;
import com.zfj.gulimall.product.dao.CategoryDao;
import com.zfj.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.zfj.gulimall.product.entity.AttrGroupEntity;
import com.zfj.gulimall.product.entity.CategoryEntity;
import com.zfj.gulimall.product.service.CategoryService;
import com.zfj.gulimall.product.vo.AttrGroupRelationVo;
import com.zfj.gulimall.product.vo.AttrRespVo;
import com.zfj.gulimall.product.vo.AttrVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zfj.common.utils.PageUtils;
import com.zfj.common.utils.Query;

import com.zfj.gulimall.product.dao.AttrDao;
import com.zfj.gulimall.product.entity.AttrEntity;
import com.zfj.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

	@Autowired
	AttrAttrgroupRelationDao relationDao;

	@Autowired
	AttrGroupDao attrGroupDao;
	@Autowired
	CategoryDao categoryDao;
	@Autowired
	CategoryService categoryService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
	@Override
	public void saveAttr(AttrVo attr) {
		AttrEntity attrEntity = new AttrEntity();
//		attrEntity.setAttrName(attr.getAttrName());
		BeanUtils.copyProperties(attr,attrEntity);
		//保存基本数据
		this.save(attrEntity);
		//保存关联关系
	    if(attr.getAttrType()== ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId()!=null){
		    AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
		    relationEntity.setAttrGroupId(attr.getAttrGroupId());
		    relationEntity.setAttrId(attrEntity.getAttrId());
		    relationDao.insert(relationEntity);
	    }

	}

	@Override
	public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
		QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
		if(catelogId!=0){
			queryWrapper.eq("catelog_id",catelogId);
		}
		String key =(String) params.get("key");
		if(!StringUtils.isEmpty(key)){
			queryWrapper.and((wrapper)->{
				wrapper.eq("attr_id",key).or().like("attr_name",key);
			});
		}
		IPage<AttrEntity> page = this.page(
				new Query<AttrEntity>().getPage(params),
				queryWrapper
		);
		PageUtils pageUtils=new PageUtils(page);
		List<AttrEntity> records = page.getRecords();
		List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
			AttrRespVo attrRespVo = new AttrRespVo();
			BeanUtils.copyProperties(attrEntity, attrRespVo);
			//设置分类和分组
			if("base".equalsIgnoreCase(type)){
				AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
				if (attrId != null &&attrId.getAttrGroupId()!=null) {
					AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
					attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
				}
			}

			CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
			if (categoryEntity != null) {
				attrRespVo.setCatelogName(categoryEntity.getName());
			}

			return attrRespVo;
		}).collect(Collectors.toList());
		pageUtils.setList(respVos);
		return pageUtils;
	}

	@Override
	public AttrRespVo getAttrInfo(Long attrId) {
		AttrRespVo respVo = new AttrRespVo();
		AttrEntity attrEntity = this.getById(attrId);
		BeanUtils.copyProperties(attrEntity,respVo);

		if(attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
			//设置分组信息
			AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
			if(attrgroupRelation!=null){
				respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
				AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
				if(attrGroupEntity!=null){
					respVo.setGroupName(attrGroupEntity.getAttrGroupName());
				}
			}
		}


		//设置分类信息
		Long catelogId = attrEntity.getCatelogId();
		Long[] catelogPath = categoryService.findCatelogPath(catelogId);
		respVo.setCatelogPath(catelogPath);
		CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
		if(categoryEntity!=null){
			respVo.setCatelogName(categoryEntity.getName());
		}
		return respVo;
	}

	@Transactional
	@Override
	public void updateAttr(AttrVo attr) {
		AttrEntity attrEntity = new AttrEntity();
		BeanUtils.copyProperties(attr,attrEntity);
		this.updateById(attrEntity);

		if(attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
			//修改分组关联
			AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
			relationEntity.setAttrGroupId(attr.getAttrGroupId());
			relationEntity.setAttrId(attr.getAttrId());
			Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
			if(count>0){
				relationDao.update(relationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
			}else {
				relationDao.insert(relationEntity);
			}
		}

	}

	/**
	 * 根据分组id查找关联的所有基本属性
	 * @param attrgroupId
	 * @return
	 */
	@Override
	public List<AttrEntity> getRelationAttr(Long attrgroupId) {
		List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
		List<Long> attrIds = entities.stream().map((attr) -> {
			return attr.getAttrId();
		}).collect(Collectors.toList());
		if(attrIds==null || attrIds.size()==0){
			return null;
		}
		Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
		return (List<AttrEntity>)attrEntities;
	}

	@Override
	public void deleteRelation(AttrGroupRelationVo[] vos) {
//		relationDao.delete(new QueryWrapper<>().eq("attr_id",1L).eq("attr_group_id",1L));
		List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
			AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
			BeanUtils.copyProperties(item, relationEntity);
			return relationEntity;
		}).collect(Collectors.toList());
		relationDao.deleteBatchRelation(entities);
	}

	/**
	 * 获取当前分组没有关联的属性
	 * @param params
	 * @param attrgroupId
	 * @return
	 */
	@Override
	public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
		//当前分组只能关联自己所属分类的所有属性
		AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
		Long catelogId = attrGroupEntity.getCatelogId();
		//当前分组只能关联别的分组没有的属性
		//但钱分类其他分组
		List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
		List<Long> collect = group.stream().map((item) -> {
			return item.getAttrGroupId();
		}).collect(Collectors.toList());
		//这些分组的属性
		List<AttrAttrgroupRelationEntity> groupId = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
		List<Long> attrIds = groupId.stream().map((item) -> {
			return item.getAttrId();
		}).collect(Collectors.toList());
		//从当天分类的所有属性中剔除这些属性
		QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
		if (attrIds != null && attrIds.size() > 0) {
			queryWrapper.notIn("attr_id", attrIds);
		}
		String key =(String) params.get("key");
		if(!StringUtils.isEmpty(key)){
			queryWrapper.and((w)->{
				w.eq("attr_id",key).or().like("attr_name",key);
			});
		}
		IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);
		PageUtils pageUtils=new PageUtils(page);
		return pageUtils;
	}

	@Override
	public List<Long> selectSearchAttrIds(List<Long> attrIds) {
		return baseMapper.selectSearchAttrIds(attrIds);

	}

}
